Cap-puller.



E. B. CANTRELL & G. E. MILLER.

CAP FULLER.

APPLICATION r1150 DEC. 13. 1016. RENEWED JULY 19.1918.

1,291,638. Patented Jun. 14,1919.

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WITNESSES: INVENTOR WW .Zcimz'n E 02222 Z'WeZZ Q'eorge EJ/ZZZEW,

Amnuns nn rnnsrarns PATENT-OFFICE. I

EDWIN B. oAnrrnE AND enonon n. MILLER; 01 SAN: rnancrsco, CALIFORNIA.

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pe ifi a o tt l' t, Patented J an. 14 1919.

" Application filed December 13', 1916, Seria1'No. 136,817. Emma July 19,-1918. Serial no'.a45,7-74.

-'T0 all whom it may concern: I v

- Be it' known that we, EDWIN B. GANTRELL and GEORGE E. 'M'ILLER, citizens of the United States, residing at the city and county 10ft San Francisco and State of California, have invented new and useful" Improvements in Cap-Pullers, of whichthe following is a-specification.- 1

In garages and shops, particularly where repair work is done on Ford cars, it frequently happens that the bearing-aibushings or the roller bearings inlthe real: shaft housing have to be removed-, either because they are worn or for other reasons, or that the felt washer at theend of the axle housing has to he removed. The removal of any one of the parts mentioned requires considerable time as the end caps on the axle housing must first be taken off. These caps are driven or pressed into position and their re moval is, therefore, more or less difiicult, as it requires both time and skill to accomplish this operation without damaging the caps.

One of the objects of the present invention is to provide a simple, substantial cap puller, whereby any individual, whether skilled or otherwise, can remove the caps without any unnecessary loss of time or any danger of damaging the caps. Further objects will hereinafter appear.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which Figure 1 is a section of one end of a rear axle housing, showing the application of the invention.

Fig. 2 is a plan view of the cap puller.

Referring to the drawings in detail, A indicates one end of an axle housing; 2 the axle; 3 the axle spindle; 4 the roller bearings; 5 the bearing bushing; and 6 the end cap, between which and the end of the axle housing is mounted a felt washer 7. This cap is either pressed or driven on the end of the axle housing and its removal presents more or less of a difiicult problem, as previously stated. A cap puller has been provided in the present instance whereby it may be quickly removed without damaging the cap.

This cap puller is constructed as follows:

8 indicates a cone-shaped housing, one end slipped over the axle spindle 3 and the'cap 6. Extending through the closed end 10 ofthe casing isa screw 11, the inner end of which is 'pointed,-as at 12, to engagethe center of the spindle 3. This screw may be provided with a square head "on its-outerend topermit it to be turned by a wrench, or, ashere shown, by a crank-shaped handle extension'13:

. Formed'on topof the casing, near the open end,'is a lug 14 through which passes aiscrew 1 5, and formed just beneath saidlug is a sl0t 16 through which extends a comparatively heavy spring 17. One end of this spring is suitably secured in a lug- '18, formed on top of the casing, while the opposite end is hook-shaped and extends through the slot 16. The spring tension is such that it will normally engage the upper wall 18 of the slot or the point of the screw 15, thus normally retaining the hooleshaped end 19 of the spring withdrawn with relation to the interior open end of the casing.

The operation of the cap puller will be as follows: The screw 15 is first turned to a point where it permits the hook-shaped end 19 of the spring 17 to assume the dotted line position. shown in Fig. 1. The housing is then slipped over the spindle 3 and the cap 6 to assume the position shown in Fig. 1. The screw 15 is then turned to force the point against the spring, or, in other words, to drive the hook 19 behind the edge of the cap where it will securely engage the same. The screw 11 may then be turned, either by means of the handle 13 or by a wrench, until sufficient pressure is brought to bear against the end of the axle spindle to pull the casing in the direction of arrow at.

A continued turning of the screw 11 will then remove the cap, as the casing will continue traveling in the direction of arrow or as long as turning movement is imparted to the screw. The removal of the cap is in this manner easily accomplished without loss of time and without any danger of damaging the cap. The removal of the cap 6 not only permits the insertion of a new washer 7 but also permits the removal of the roller bearings 1 or the bearing bushing 5, and as the cap may be driven back into place comparatively little time is required.

The interior diameter of the open end of the casing is just sufiicient to permit it to fit the cap 6 and as the whole construction and operation of the cap puller is simple, it

' parts of the cap puller are such as the experience and judgment of the manufacturer may dictate. y

We wish it understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims, and that we do not wish to limit ourselves to the specific design and construction here shown, except as required by the scope of said claims. 7

Having thus described our invention, what We claim and desire to secure by Letters Patent is r 1. A cap puller comprising a cone-shaped holder open at one end and closed by a head at the opposite end, a screw rod centrally p0- sitioned in the head, a spring secured to the holder, and a hook-shaped catch formed on one end of the spring adapted to be moved into or out of alinement with the open end of the holder.

2. A cap puller comprising a cone-shaped holder open at one end and closed by a head at the opposite end, a screw rod centrally positioned in the head, a spring secured to the holder, a hook-shaped catch formed on one end of said spring to engage the cap, and a screw mounted in the holder engageable with the spring to engage the catch with theholder, and turnable to allow the spring to retract and withdraw the catch and release the cap. i

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

Witnesses:

JOHN H.-HERRING, W. W. HEALEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 02 Patents,

Washington, E. E2. 1 

